ATE476042T1 - ASK DEMODULATION DEVICE AND WIRELESS DEVICE EQUIPPED THEREFROM - Google Patents

ASK DEMODULATION DEVICE AND WIRELESS DEVICE EQUIPPED THEREFROM

Info

Publication number
ATE476042T1
ATE476042T1 AT04025534T AT04025534T ATE476042T1 AT E476042 T1 ATE476042 T1 AT E476042T1 AT 04025534 T AT04025534 T AT 04025534T AT 04025534 T AT04025534 T AT 04025534T AT E476042 T1 ATE476042 T1 AT E476042T1
Authority
AT
Austria
Prior art keywords
signal
outputs
section
clock
data
Prior art date
Application number
AT04025534T
Other languages
German (de)
Inventor
Kenji Miyanaga
Tomohiro Kimura
Kenichi Mori
Hitoshi Takai
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Application granted granted Critical
Publication of ATE476042T1 publication Critical patent/ATE476042T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell
    • H03M5/12—Biphase level code, e.g. split phase code, Manchester code; Biphase space or mark code, e.g. double frequency code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

An ASK (Amplitude Shift Keying) demodulation device for wireless communications is disclosed which has the following operation: A delay section delays a detected signal by less than one bit time in NRZ data. A subtraction section performs subtraction between the delayed signal and the detected signal, and outputs a resultant signal. A clock extraction section extracts, from crossing points of said resultant signal, crossing points whose time interval is more than or equal to Tb-± and less than or equal to Tb+² (0<±‰¦Tb/8, 0<²‰¦Tb: Tb is one bit time in the NRZ data), and outputs a synchronous signal synchronized with the extracted crossing point. A clock recovery section synchronizes a clock signal with the phase of the synchronous signal, and outputs a data clock signal. A determination section determines the polarity of the subtracted signal outputted from the subtraction section in accordance with the data clock signal, and outputs the determination result as NRZ data.
AT04025534T 2003-10-30 2004-10-27 ASK DEMODULATION DEVICE AND WIRELESS DEVICE EQUIPPED THEREFROM ATE476042T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003370376 2003-10-30

Publications (1)

Publication Number Publication Date
ATE476042T1 true ATE476042T1 (en) 2010-08-15

Family

ID=34420197

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04025534T ATE476042T1 (en) 2003-10-30 2004-10-27 ASK DEMODULATION DEVICE AND WIRELESS DEVICE EQUIPPED THEREFROM

Country Status (6)

Country Link
US (1) US7450666B2 (en)
EP (1) EP1528738B1 (en)
KR (1) KR101021390B1 (en)
CN (1) CN1630201B (en)
AT (1) ATE476042T1 (en)
DE (1) DE602004028323D1 (en)

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US8364185B2 (en) * 2005-04-18 2013-01-29 Samsung Electronics Co., Ltd. Method and system for synchronizing a clock for an adjacent network to a clock for an overlay network
KR100768100B1 (en) * 2005-09-29 2007-10-17 한국전자통신연구원 Appratus and Method for Receiving Tag Signal in Mobile RFID Reader
US7821378B2 (en) 2005-09-29 2010-10-26 Electronics And Telecommunications Research Institute Apparatus and method for receiving tag signal in mobile RFID reader
JP4778524B2 (en) * 2005-11-30 2011-09-21 富士通株式会社 Demodulator circuit
US8023586B2 (en) * 2007-02-15 2011-09-20 Med-El Elektromedizinische Geraete Gmbh Inductive power and data transmission system based on class D and amplitude shift keying
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US7839964B2 (en) * 2007-06-29 2010-11-23 Lecroy Corporation Bit pattern synchronization in acquired waveforms
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DE102009009565B4 (en) 2009-02-19 2011-04-28 Atmel Automotive Gmbh Receiver circuit, use and method for receiving a coded and modulated radio signal
CN201421494Y (en) * 2009-05-11 2010-03-10 中山大洋电机股份有限公司 Microprocessor clock detection circuit and singlechip MCU clock detection circuit of DC brushless motor
JP2011151473A (en) * 2010-01-19 2011-08-04 Panasonic Corp Angle modulator, transmitter and wireless communication device
JP2011254157A (en) 2010-05-31 2011-12-15 Sony Corp Information processing device, reception method and radio communication system
RU2477922C2 (en) * 2010-12-20 2013-03-20 Открытое акционерное общество "Омский научно-исследовательский институт приборостроения" (ОАО "ОНИИП") Method for detecting signals at expected uncertainty of their parameters
US8488732B2 (en) * 2011-01-05 2013-07-16 Himax Media Solutions, Inc. Communication receiver and a receiving method
US9369120B2 (en) * 2011-01-14 2016-06-14 Infineon Technologies Ag Detector circuit, transponder and method for detecting signal amplitudes
US8995596B1 (en) * 2012-02-08 2015-03-31 Altera Corporation Techniques for calibrating a clock signal
DE102012010375A1 (en) 2012-05-29 2013-12-05 Sew-Eurodrive Gmbh & Co Kg Decoding method and decoder
US9679291B2 (en) 2012-06-05 2017-06-13 Dove Voice Technologies Ltd. System and method of transmitting data over a voice channel
JP5960938B1 (en) 2013-04-19 2016-08-02 フィリップス ライティング ホールディング ビー ヴィ Timing recovery from self-clock encoded optical signals
WO2015083147A1 (en) * 2013-12-05 2015-06-11 Yehudai Yehuda Method and system for communication digital data on an analog signal
KR102068954B1 (en) * 2014-03-04 2020-01-22 삼성전자 주식회사 Amplitude Shift Keying Demodulator and Communication Apparatus including the same
JP6327040B2 (en) * 2014-07-24 2018-05-23 富士通株式会社 Communication apparatus and data reproduction method
KR102238709B1 (en) * 2014-09-12 2021-04-12 삼성전자주식회사 Radio frequency processing apparatus and method
CN107864108B (en) * 2017-12-20 2021-02-26 四川九洲空管科技有限责任公司 A Fast ASK Demodulation Method Based on Secondary Radar
IL280828B2 (en) 2018-08-14 2024-03-01 Avx Antenna Inc D/B/A Ethertronics Inc Method and system for controlling a modal antenna
US12009954B2 (en) * 2021-11-30 2024-06-11 Stmicroelectronics, Inc. Device and method for decoding data from wireless signals
EP4432613A1 (en) * 2023-03-15 2024-09-18 Nxp B.V. Switched capacitor filter circuit
CN118764136B (en) * 2024-09-05 2025-01-10 无锡国芯微高新技术有限公司 PSI5 bus modulation-demodulation communication method and system

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JP2000078211A (en) 1998-09-03 2000-03-14 Sony Corp Information demodulating apparatus and method, and providing medium
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JP3894874B2 (en) 2002-11-05 2007-03-22 株式会社日立国際電気 Receiver

Also Published As

Publication number Publication date
US20050094745A1 (en) 2005-05-05
CN1630201B (en) 2011-05-18
EP1528738B1 (en) 2010-07-28
DE602004028323D1 (en) 2010-09-09
KR20050041950A (en) 2005-05-04
US7450666B2 (en) 2008-11-11
KR101021390B1 (en) 2011-03-14
CN1630201A (en) 2005-06-22
EP1528738A2 (en) 2005-05-04
EP1528738A3 (en) 2006-09-06

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties